Konstantin Belousov 796a8e1ad1 procctl(2): Add PROC_WXMAP_CTL/STATUS
It allows to override kern.elf{32,64}.allow_wx on per-process basis.
In particular, it makes it possible to run binaries without PT_GNU_STACK
and without elfctl note while allow_wx = 0.

Reviewed by:	brooks, emaste, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D31779
2021-09-17 15:42:01 +03:00
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